Tuyere cooler



Patented July 3, 1928.

I UNITED STATES;

PATENT OFFICE.

.Lume E. Loan, or wnxmsmme, rnmsrvm.

Application mea J'aary si, 1925. Serial Io. am.

This invention relates to blast furnaco coolers and moreparticularly to means for and method of` forming a sealed .joint between the cooler and furnace wall.

I The principal'bbjc't isto provide a cooler for blast furnaces which'will' automatically seal with 'the furnace wall when-the cooler is driven home in the cooler opening.

Another object is to provide a cooler for blast furnaces having the novel Construction,combination, and design of parts hereinafter described, and illustrated in the accompanying drawings.

In the drawings- Figure 1 is a sectional elevation of the lower end of a blast furnace showing a cin,-

der notch and tuyre cooler having my invention applied thereto. i r I Figur-e 2 is an enlarged elevation of a 90 cooler having my invention applied thereto.

Figure 3 is an enlarged elevation of a cooler mounted in a section of furnace wall.

Referring more particularly to the .drawings, the letter A designates 'theportion of furnace wall shown as a. whole, which comprises the bosh portion 2, the hearth portion 3, and the stack portion 4 which is broken away.

` The bosh portion 2 is provided with a tapered cinder notch opening 5 in which is 4 mounted a t-apered cinder. notch cooler. 6.

The bosh portion 2'also is provided with the usual tapered tuyre openings 7, only one of which is shown in the drawings, and

86 a tapered tuyre cooler 8 and tuyre 9 are mounted in said openings.

The hearth is provided with aplurality of the usual cooling plates 10.

The cinder notch opening coolers which* are mounted in the openin are likewise tapered to facilitate wt drawing of the burned-out c`oolers.

. 5 The cindernotch and tuyre coolers 6 and 8, re's'pectively, are formed -with hollow walls through-which ater is ciroulated for cooling. These coolrs frequently burn outand must be removed and replaced while the furnace is in operation. I

It' 's well known in the art, thatthe re- 'moving of a burned-out cooler and replacin it with a new cooler is a dangerous and di 5 and tuyre' 40 opening 7 are each tapered inwardlj and the wall havng at least one mwardly taperng ficult o eration, due to the escape of heat, gases, ame, etc. during the operation.

Heretofore it has been the practice to pull out the burned-out cooler, insert a new cooler and force the cooler into position, then to force suitable packing'by the use of paddles,' bars and other tools, around the cooler to form a sealed joint between the cooler and furnace wall, This operation exposed the' workmen to the escaping gases, flames, etc. for a considerable time.

The present invention provides an im proved orm of cooler having a packing ring 12 of asbestos loosely mounted thereon, which ring is mounted on the cooler at a pont materially beyond its rear end, and due to the taper of the cooler, at a point where it will readily fit within the cooler opening. The cooler and ring are thus forced into the cooler opening to ethe'r, and the cooler is then driven home, orcing the ring 12 back a short distance on the' cooler and compressing it between the sides of the cooler opening and the cooler, thereby automatically forming a sealed joint between the cooler and furnace wall and preventing the escape of the gases and flames, which' have heretofore been so bpthersome and dangerous to the workmen.

The packing ring 12 forms a complete seal.

It will be understood, however, that if desired other packin material ma be. forced in around the 'coo er back of t e ring, although such packing is not necessary. v The cinder notch and tuyre coolers 6 and 8 are of substantially the same Construction. Therefore, only the cinder notch cooler 6 has been shown in enlarged 'detaiL I'clai'n-- 1. The combination with a blast fumace cooler opening ther-ein, of a tapered cooler adapted to be inserted in said opening, and an asbestos packing ring mounted on said cooler and adapted to be automatically moved longitudinally of said cooler as said cooler is driven home in said opening, thereby oompressing said ring and. f'orming a sealld joint between said 'cooler and furnaee wa v 4 2. The combination with a blast furnace wall having at least one inwardly tapering cooler opening therein, of a tapered cooler adapted to be inserted in said opening, and a compressible packing ring of non-combustible material loosely mounted on said cooler at a point materia'lly forward ,of the point where it is desired to have it form its seal, said cooler being adapted to be driven home in said cooler opening, and said ring ben free to and adapted to move tearwar y along said cooler as said cooler is driven home to thus form a sealing connection between the furnace wall and cooler. v

In testimony whereof I have hereunto set my hand.

JAMES E. LOSE; 

